include/hw/virtio/vhost-user-fs.h

   1 /*
   2  * Vhost-user filesystem virtio device
   3  *
   4  * Copyright 2018-2019 Red Hat, Inc.
   5  *
   6  * Authors:
   7  *  Stefan Hajnoczi <stefanha@redhat.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or
  10  * (at your option) any later version.  See the COPYING file in the
  11  * top-level directory.
  12  */
  13
  14 #ifndef _QEMU_VHOST_USER_FS_H
  15 #define _QEMU_VHOST_USER_FS_H
  16
  17 #include "hw/virtio/virtio.h"
  18 #include "hw/virtio/vhost.h"
  19 #include "hw/virtio/vhost-user.h"
  20 #include "chardev/char-fe.h"
  21 #include "qom/object.h"
  22
  23 #define TYPE_VHOST_USER_FS "vhost-user-fs-device"
  24 typedef struct VHostUserFS VHostUserFS;
  25 DECLARE_INSTANCE_CHECKER(VHostUserFS, VHOST_USER_FS,
  26                          TYPE_VHOST_USER_FS)
  27
  28 typedef struct {
  29     CharBackend chardev;
  30     char *tag;
  31     uint16_t num_request_queues;
  32     uint16_t queue_size;
  33 } VHostUserFSConf;
  34
  35 struct VHostUserFS {
  36     /*< private >*/
  37     VirtIODevice parent;
  38     VHostUserFSConf conf;
  39     struct vhost_virtqueue *vhost_vqs;
  40     struct vhost_dev vhost_dev;
  41     VhostUserState vhost_user;
  42     VirtQueue **req_vqs;
  43     VirtQueue *hiprio_vq;
  44
  45     /*< public >*/
  46 };
  47
  48 #endif /* _QEMU_VHOST_USER_FS_H */